FIELD: process engineering.
SUBSTANCE: invention relates to concentration of rare-earth metal and tin ores. Proposed method comprises primary flotation by oxyhydril collector to produce crude concentrate, concentrate thickening and directing it to cleaner floatation. Liquid bacteria Bacillus mucilaginosus in amount of 10-20 ml per 1l of concentrate is added to thickened crude concentrate pulp to be held out for at least 3 days and directed to cleaner flotation to be conducted at pH of at least 6.
EFFECT: higher yield of valuable components.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF FLOTATION OF ORES | 0 |
|
SU1318302A1 |
| METHOD FOR ENRICHMENT OF SCHEELITE-SULFIDE ORES | 1992 |
|
RU2031733C1 |
| METHOD FOR COMPLEX ENRICHMENT OF RARE-EARTH METAL ORES | 2015 |
|
RU2606900C1 |
| METHOD FOR ENRICHMENT OF SCHEELITE-SULFIDE ORES | 1992 |
|
RU2031734C1 |
| METHOD OF FLOTATION CONCENTRATION OF RARE-METAL ORES | 2014 |
|
RU2569394C1 |
| COLLECTOR FOR FLOTATION OF RARE METALS AND TIN | 0 |
|
SU871831A1 |
| METHOD FOR ENRICHMENT POLYMETALLIC ORES CONTAINING NICKEL, COPPER AND IRON SULFIDE MINERALS | 2015 |
|
RU2613687C1 |
| APATITE ORE DRESSING METHOD | 2020 |
|
RU2737769C1 |
| PROCESS OF CONCENTRATING NIOBIUM AND FINELY DISPERSED MATTER- CONTAINING RAW RARE-EARTH METALS | 1991 |
|
RU2033858C1 |
| METHOD OF FLOTATION ENRICHMENT OF SULPHIDIC COPPER-NICKEL ORES | 2009 |
|
RU2404858C1 |
